Which of these factors is least likely to determine whether a given solute dissolves in a given solvent?
a. whether the solvent and solute are both polar
b. whether the solvent and solute are both nonpolar
c. whether the solute and solvent are both composed of molecules of about the same size
d. whether the solute and solvent can form hydrogen bonds with each other

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.

I’m an electrically neutral atomic any element, there are equal numbers of